Coach Rippetoe earlier addressed the topic of how to re-start training, if you have been unable to go to the gym because of the pandemic (start at 42:30):
Rip’s Rant and Getting Back in the Gym After House Arrest | Starting Strength Radio #57
Avoiding soreness is the priority--note that for the first workout, Coach Rippetoe initially says that someone who was squatting 365 before the layoff should come back and do 225x5x3, but then he says do only one work set, not three. He then gives some additional examples.
Your situation is pretty similar to mine last year (age, time off, weights). Squats are the key, because if you do too much, you will be really sore. I would consider squatting 60kg for 1x5 for the work set for the first time back in the gym. You could even go lower to 45kg for 1x5. After the first workout, you probably will not have much soreness and will be able to do 3x5 for the squat work sets and increase 5kg for each workout for two weeks or more. Then you can go back to regular NLP and set PRs before too long.
Good luck!